Petroleum pipeline cutting scribing tool

Abstract

The invention discloses a petroleum pipeline cutting scribing tool which comprises two steel strips. A rectangular connector is mounted at one end of each steel strip, a steel column which is outwardly protruded is arranged in the center of each rectangular connector, and a positioning screw hole is formed in the other end of each steel strip and is opposite to the corresponding rectangular connector; strip-shaped holes are formed in the surfaces of the steel strips, the two steel strips are connected with each other by an upper elastic band, a middle elastic band and a lower elastic band, a glue assembly is arranged in the middle of each elastic band, and a waterproof membrane is arranged on the outer surface of each glue assembly; a sliding seat is loaded into each strip-shaped hole. The petroleum pipeline cutting scribing tool has the advantages that time and labor can be saved, and the post-cutting levelness can be guaranteed; the petroleum pipeline cutting scribing tool is provided with the two steel strips, the elastic bands and glue are arranged between the two steel strips, and a left marking boundary line and a right marking boundary line can be formed in a pipeline after the pipeline is scribed along the strip-shaped holes, so that a cut area can be formed, and the practicality is improved.

Description

technical field [0001] The invention relates to an auxiliary tool for maintenance of oil pipelines, in particular to a tool for cutting and drawing lines of oil pipelines. Background technique [0002] At present, pipe fittings used in petroleum, chemical industry, electric power, shipbuilding, metallurgy, machinery, textile, food, construction, pharmaceutical and other industries need to have high strength, pressure resistance, corrosion resistance and high temperature resistance. In the oil industry, it is necessary to lay long pipelines for oil transportation, but because most of the oil pipelines are laid in relatively harsh environments, leakage and rupture often occur. Repair welding is performed on the pipe. If the damage is large and repair welding is impossible, the damaged part needs to be cut off and replaced with a new pipe section. During the replacement process, the cutting nozzle should be kept flush. Now the general process is to manually surround the outer ...

AI Technical Summary

Problems solved by technology

Now the general process is to manually surround the outer wall of the oil pipeline with a circle, and another person draws a line along the circle with a special stone pencil, and then cuts along the drawn line. When the pipe diameter is large, two Only one person can complete the line drawing work at the same time, which is a waste of manpower, and due to the lack of effective tools, the drawn lines are often not guaranteed to be even, which affects the final connection and sealing effect with the new pipe section

Images